Mattress



FIG. 1 is a perspective view of a first embodiment of the mattress;

FIG. 2 is an end view of the mattress of FIG. 1, identical to the opposite end thereof;

FIG. 3 is side view of the mattress of FIG. 1, identical to the opposite side thereof.

FIG. 4 is a top plan view of the mattress of FIG. 1, the opposite side of which is identical in appearance;

FIG. 5 is a perspective view of a first alternate embodiment of the mattress of FIG. 1;

FIG. 6 is an end view of a second embodiment of the mattress of FIG. 5, identical to the opposite end thereof;

FIG. 7 is a side view of the mattress of FIG. 5, identical to the opposite side thereof;

FIG. 8 is a top plan view of the mattress of FIG. 5, the opposite side of which is identical in appearance;

FIG. 9 is a perspective view of a second alternate embodiment of the mattress of FIG. 1;

FIG. 10 is an end view of the mattress of FIG. 9, identical to the opposite end thereof;

FIG. 11 is a side view of the mattress of FIG. 9, identical to the opposite side thereof; and,

FIG. 12 is a top plan view of the mattress of FIG. 9, the opposite side of which is identical in appearance. 

CLAIM The ornamental designs for a mattress, as shown and described. 